View V48SH1R235NNFA_7358970.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

ds_v4 8sh1r 235 _ 10282013 features ? high effi ciency: 8 7 % @ 1. 2 v/ 3 5 a ? size: 33.0 x 22.8x 9.5 mm ( 1.30 x 0.90 x 0. 3 7 ) ( w/o heat - spreader ) 33.0 x 22.8x 12.7 mm ( 1.30 x 0.90 x 0. 50 ) ( with heat - spreader ) ? industry standard footprint and pinout ? fixed frequency operation ? smd and t hrough - hole versions ? input uvlo ? otp and o utput ocp, ovp ? output voltage trim: - 2 0%, +10% ? monotonic startup into normal and pre - biased loads ? 1500 v isolation and b asic insulation ? no minimum load required ? no negative current during power or enable on/off ? iso 900 1 , tl 9000, iso 14001 , qs 9000, ohsas18001 certified manufacturing facility ? ul/c ul 60950 - 1 (us & canada) recognized applications ? optical transport ? data networking ? communications ? servers options ? smd pins ? short pin lengths available ? positive remote on/off ? heat spreader delphi series v48s h , 1/16 th brick 42 w dc/dc power modules: 48v in, 1. 2 v, 3 5 a o ut the delphi series v 48sh , 1/16 th brick, 48v input, single output , isolated dc/dc converter, is the latest offering from a world leader in power systems technology and manufacturing D delta electronics, inc. this product family provides up to 100 watts of power or 50 a of output current in an industry standard 1/16 th brick form factor (1.30 x 0.90). the 1.2 v output offers o ne of the highest output currents available and provid es up to 8 7 % effi ciency at full load. with c reative design technology and optimization of component placement , these converters possess outstanding electrical and thermal performance, as well as extreme ly high reliability under highly stressful operating conditions. all modules are protected from abnormal input/output voltage, current, and temperature conditions. for lower power needs, but in a similar small form factor, please check out delta , v36se (50 w or 15a ), s48sp (36w or 10a) and s36se (17w or 5a) series standard dc/dc modules.
ds_v48s h1r 2 3 5 _ 10282013 2 technical specificat ions ( t a =25c, airflow rate=300 lfm, v in =48vdc, nominal vout unless otherwise noted.) parameter notes and conditions v 4 8s h 1r 235 (st andard) min. typ. max. units absolute maximum ratings input voltage continuo us 80 vdc transient (100ms) 100ms 100 vdc operating hot spot temperature refer to figure 20 for measuring point - 40 114 c storage temperature - 55 125 c input/output isolation voltage 1500 vdc input characteristics operating input vo ltage 36 75 vdc input under - voltage lockout turn - on voltage threshold 3 2 .5 34 35 .5 vdc turn - off voltage threshold 3 0 .5 32 33 .5 vdc lockout hysteresis voltage 1 2 3 vdc maximum input current 100% load, 36vin 1.8 a no - load input current 4 0 6 0 ma off converter input current 10 15 ma inrush current (i 2 t) with 100uf external input capacitor 1 a 2 s input reflected - ripple current p - p thru 12h inductor, 5hz to 20mhz 8 1 5 ma input voltage ripple rejection 120 hz - 60 db output characte ristics output voltage set point vin=48v, io=io.max, tc=25c 1. 182 1.2 1. 21 8 vdc output voltage regulation over load io=io, min to io, max 5 mv over line vin=36v to 75v 5 mv over temperature tc= - 40c to 1 25 c 1 2 mv total output volt age range over sample load, line and temperature 1.1 64 1.236 v output voltage ripple and noise 5hz to 20mhz bandwidth peak - to - peak full load, 1f ceramic, 10f tantalum 120 mv rms full load, 1f ceramic, 10f tantalum 20 mv operating output cu rrent range 0 3 5 a output over current protection output voltage 10% low 110 1 4 0 % dynamic characteristics output voltage current transient 48v, 1 0f tan & 1f ceramic load cap, 0.1 a/s positive step change in output current 50% io.max to 7 5% io.max 50 100 mv negative step change in output current 75% io.max to 50% io.max 50 100 mv settling time (within 1% vout nominal) 1 0 0 us turn - on transient start - up time, from on/off control 1 5 2 5 ms start - up time, from input 1 5 2 5 ms maximum output capacitance cap esr>= 3 mohm; full load; 5% overshoot of vout at start up ; 0 1 0000 f efficiency 100% load vin=48v 8 7 % 60% load vin=48v 87 % isolation characteristics input to output 1500 vdc isolation resistance 10 m isolation capacitance 1 5 00 pf feature characteristics switching frequency 250 khz on/off control , negative remote on/off logic logic low (module on) von/off 0 0.8 v logic high (module off) von/off 2 .4 5 v on/off control, positi ve remote on/off logic logic low (module off) von/off 0 0.8 v logic high (module on) von/off 2 .4 5 v on/off current (for both remote on/off logic) ion/off at von/off=0.0v 0.3 ma on/off current (for both remote on/off logic) ion/off at von/of f= 2 v 10 ua leakage current (for both remote on/off logic) logic high, von/off= 5v 50 ua output voltage trim range m ax rated current guarantee d at full trim range - 2 0 10 % output voltage remote sense range m ax rated current guarantee d at full remo te sense range 10 % output over - voltage protection over full temp range; % of nominal vout 150 % general specifications mtbf p er telecordia sr - 332, 8 0% load, 25c, 48vin, 3 00lfm 5.56 m hours weight open frame 13.3 grams weight (with heat - s preader) with heat - spreader 20.8 grams over - temperature shutdown refer to figure 20 for measuring point 125 c
ds_v48s h1r 2 3 5 _ 10282013 3 electrical character istics curves figure 1: efficiency vs. load current for minimum, nominal, and maximum input voltage at 25c fig ure 2: power dissipation vs. load current for minimum, nominal, and maximum input voltage at 25c. figure 3: typical full load input characteristics at room temperature 60 65 70 75 80 85 90 3.5 7 10.5 14 17.5 21 24.5 28 31.5 35 output current(a) efficiency(%) 1 36vin 48vin 75vin 0 1 2 3 4 5 6 7 3.5 7 10.5 14 17.5 21 24.5 28 31.5 35 output current(a) power dissipation(w) 1 36vin 48vin 75vin 0 0.3 0.6 0.9 1.2 1.5 1.8 25 30 35 40 45 50 55 60 65 70 75 input voltage (v) input current (a) 1
ds_v48s h1r 2 3 5 _ 10282013 4 electrical character istics curves for negative remote on/off start up figure 4: turn - on transient at full rated load current ( 10 ms/div). vin=48v. top trace: vout , 0.5 v/div; bottom trace: on/off input, 5 v/div figure 5: turn - on transient at zero load current ( 10 ms/div). vin=48v. top t race: vout: 0.5 v/div , bottom trace: on/off input , 5 v/div for input voltage start up figure 6 : turn - on transient at full rated load current ( 10 ms/div). vin=48v. top trace: vout , 0.5 v/div; bottom trace: vin , 2 0 v/d iv figure 7: turn - on transient at zero load current ( 10 ms/div). vin=48v. top trace: vout , 0.5 v/div; bottom trace: vin , 2 0 v/div figure 8: output voltage response to step - change in load current (75% - 50% - 75% of io , max; di/dt = 0.1a/s). load cap: 10f tantalum capacitor and 1f ceramic capacitor. top trace: vout ( 50 mv/div, 200us /div ), bottom trace: iout ( 10 a/div). scope measurement should be made using a bnc cable (length shorter than 20 inches). position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module figure 9: output voltage response to step - change in load current (75% - 50% - 75% of io, max; di/dt = 1.0a /s). load cap: 2 000 f tantalum capacitor and 1f ceramic capacitor. top trace: vout ( 5 0m v/div, 200us /div ), bottom trace: iout (10a/div). scope measurement should be made using a bnc cable (length shorter than 20 inches). position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module
ds_v48s h1r 2 3 5 _ 10282013 5 electrical character istics curves figure 10: test set - up diagram showing measurement points for input terminal ripple current and input reflected ripple current. note: measured input reflected - ripple current with a simulated source inductance (l test ) of 12 h. capacitor cs offset possible battery impedance. measure current as shown above figure 1 1: input terminal ripple current, i c , at full rated output current and nominal input voltage with 12h source impedance and 33f electrolytic capacitor ( 20 0 ma/div , 1 us /div ) figure 1 2: input reflected ripple current, i s , through a 12h source inductor at nominal input voltage and rated load current (20 ma/div , 1 us /div ) figure 1 3: output voltage noise and ripple measurement test setup figure 14 : output voltage ripple at nominal input voltage and rated load current (io= 35 a) ( 50 mv/div, 1 us /div ) load capacitance: 1f ceramic capacitor and 10f tantalum capacitor. bandwidth: 20 mhz. scope measurements should be made using a bnc ca ble (length shorter than 20 inches). position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module. strip copper vo(-) vo(+) 10u 1u scope resistive load vin + vin - is ic 100uf, esr=0.2 ohm @ 25 o c 100khz cs: 220uf + + vin + vin - is ic 100uf, esr=0.2 ohm @ 25 o c 100khz cs: 220uf + + is ic 100uf, esr=0.2 ohm @ 25 o c 100khz cs: 220uf + + + +
ds_v48s h1r 2 3 5 _ 10282013 6 ? the input source must be insulated from the ac mains by reinforced or double insulation. ? the input terminals of the module are not operator accessible. ? a selv reliabi lity test is conducted on the system where the module is used , in combination with the module, to ensure that under a single fault, hazardous voltage does not appear at the modules output. when installed into a class ii equipment (without grounding), spa cing consideration should be given to the end - use installation, as the spacing between the module and mounting surface have not been evaluated. the power module has extra - low voltage (elv) outputs when all inputs are elv. t his power module is not interna lly fused. to achieve optimum safety and system protection, an input line fuse is highly recommended. the safety agencies r equire a fast - acting fuse with 2 0 a maximum rating to be installed in the ungrounded lead. a lower rated fuse can be used based on the maximum inrush transient energy and maximum input current. soldering and cleaning considerations post solder cleaning is usually the final board assembly process before the board or system undergoes electrical testing. inadequate cleaning and/or drying may lower the reliability of a power module and severely affect the finished circuit board assembly test. adequate cleaning and/or drying is especially important for un - encapsulated and/or open frame type power modules. for assistance on appropriate solder ing and cleaning procedures, please contact deltas technical support team. design consideration s input source impedance the impedance of the input source connecting to the dc/dc power modules will interact with the modules and affect the stability. a low ac - impedance input source is recommen ded. if the source inductance is more than a few h, we advise adding a 10 to 100 f electrolytic capacitor (esr < 0.7 at 100 khz) mounted close to the input of the module to improve the stability. layout and emc considerations deltas dc/dc power modu les are designed to operate in a wide variety of systems and applications. for design assistance with emc compliance and related p w b layout issues, please contact deltas technical support team. an external input filter module is available for easier emc c ompliance design. application notes to assist designers in addressing these issues are pending release. safety considerations the power module must be installed in compliance with the spacing and separation requirements of the end - users safety agency s tandard, i.e., ul60950 - 1, csa c22.2 no. 60950 - 1 2nd and iec 60950 - 1 2nd : 2005 and en 60950 - 1 2nd: 2006+a11+a1: 2010 , if the system in which the power module is to be used must meet safety agency requirements. basic insulation based on 75 vdc input is pro vided between the input and output of the module for the purpose of applying insulation requirements when the input to this dc - to - dc converter is identified as tnv - 2 or selv. an additional evaluation is needed if the source is other than tnv - 2 or selv. w hen the input source is selv circuit , the power module meets selv (safety extra - low voltage) requirements. if the input source is a hazardous voltage which is greater than 60 vdc and less than or equal to 75 vdc, for the modules output to meet selv requir ements, all of the following must be met:
ds_v48s h1r 2 3 5 _ 10282013 7 features description s over - current protection the modules include an internal output over - current protection circuit, which will endure current limiting for an unlimited duration during output overload. if the output current exceeds the ocp set point, the modules will automatically shut down, and enter hiccup mode or latch mode, which is optional. for hiccup mode, the module will try to restart after shutdown. if the over current condition still exists, the module will shut down again. this restart trial will continue until the over - current condition is corrected. for latch mode, the module will latch off once it shutdown. the latch is reset by either cycling the input power or by toggling the on/off signal for one second. over - voltage protection the modules include an internal output over - voltage protection circuit, which monitors the voltage on the output terminals. if this voltage exceeds the over - voltage set point, the modul e will shut down, and enter in hiccup mode or latch mode, which is optional. for hiccup mode, the module will try to restart after shutdown. if the over voltage condition still exists, the module will shut down again. this restart trial will continue unti l the over - voltage condition is corrected. for latch mode, the module will latch off once it shutdown. the latch is reset by either cycling the input power or by toggling the on/off signal for one second. over - temperature protection the over - temperature protection consists of circuitry that provides protection from thermal damage. if the temperature exceeds the over - temperature threshold the module will shut down, and enter in auto - restart mode or latch mode, which is optional. for auto - restart mode, th e module will monitor the module temperature after shutdown. once the temperature is dropped and within the specification, the module will be auto - restart. for latch mode, the module will latch off once it shutdown. the latch is reset by either cycling th e input power or by toggling the on/off signal for one second. remote on/off the remote on/off feature on the module can be either negative or positive logic. negative logic turns the module on during a logic low and off during a logic high. positive logi c turns the modules on during a logic high and off during a logic low. remote on/off can be controlled by an external switch between the on/off terminal and the v i ( - ) terminal. the switch can be an open collector or open drain. for negative logic i f the remote on/off feature is not used, please short the on/off pin to vi( - ). for pos i tive logic i f the remote on/off feature is not used, please leave the on/off pin floating . figure 15 : remote on/off implementation remote sense remote sense compensat es for voltage drops on the output by sensing the actual output voltage at the point of load. the voltage between the remote sense pins and the output terminals must not exceed the output voltage sense range given here: [vo(+) C vo( C )] C [sense(+) C sense ( C )] 10% v out this limit includes any increase in voltage due to remote sense compensation and output voltage set point adjustment (trim). figure 16 : effective circuit configuration for remote sense operation if the remote sense feature is not us ed to regulate the output at the point of load, please connect sense(+) to vo(+) and sense( C ) to vo( C ) at the module . the output voltage can be increased by both the remote sense and the trim; however, the maximum increase is the larger of either the remo te sense or the trim, not the sum of both. vo(+) vi(+) vo(-) sense(-) sense(+) vi(-) on/off vi(-) vi(+) vo(-) vo(+) sense(+) sense(-) resistance contact contact and distribution losses
ds_v48s h1r 2 3 5 _ 10282013 8 features description s (con.) when using remote sense and trim, the output voltage of the module is usually increased, which increases the power output of the module with the same output current. m ax rated cu rrent is guarantee d at full output voltage remote sense range. output voltage adjustment (trim) to increase or decrease the output voltage set point, connect an external resistor between the trim pin and either the sense(+) or sense( - ). the trim pin sho uld be left open if this feature is not used. figure 17 : circuit configuration for trim - down (decrease output voltage) if the external resistor is connected between the trim and sense ( - ) pins, the output voltage set point decreases (fig. 1 7 ). the ex ternal resistor value required to obtain a percentage of output voltage change ex. when trim - down - 10% (1.2v0.9=1.08v) figure 18 : circuit configuration for trim - up (increase output voltage) if the external resistor is connected between the trim and sense ( + ) the output voltage set point increases (fig. 1 8 ). the external resistor value require d to obtain a percentage output voltage change ? ? ? ? ? ? ? ? ? ? ? ? ? k down rtrim 2 . 10 511 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? k k down rtrim 9 . 40 2 . 10 10 511 ? ? ? ? ? ? ? ? ? ? ? k up rtrim 2 . 10 511 0.6 ) (100 vo 11 . 5 ? ? ? ? ? ? ? ? ? ? ? ? k up rtrim 1 . 51 2 . 10 10 511 10 6 . 0 ) 10 100 ( 2 . 1 11 . 5
ds_v48s h1r 2 3 5 _ 10282013 9 thermal consideratio ns thermal management is an important part of the system design. to ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperature range of the module. convection cooling is usually the dominant mode of heat transfer. hence, the choice of equipment to characterize the thermal performance of the power module is a wind tunnel. thermal testing setup deltas dc/dc power modules are characterized in 6.35mm (0.25). figure 19 : wind tunnel test setup thermal derating heat can be removed by increasing airflow over the module. to enhance system reliability, the power module should always be operated below the maximum operating temperature. if the temperature exceeds the maximum module temperature, reliability of the unit may be affected. thermal curves figure 20 : temperature measurement location the allowed maximum hot spot temperature is defined at 1 14 . figure 21 : output current vs. ambient temperature and air velocity @ vin=48v (either orientation) note: wind tunnel test setup figure dimensions are in millimeters and (inches) 12.7 (0.5) module air flow 50.8 (2.0) facing pwb pwb air velocity and ambient temperature measured below the module v48sh1r235(standard) output current vs. ambient temperature and air velocity @vin = 48v (either orientation) 0 5 10 15 20 25 30 35 25 30 35 40 45 50 55 60 65 70 75 80 85 ambient temperature ( ) output current (a) natural convection 100lfm 200lfm 300lfm 400lfm
ds_v48s h1r 2 3 5 _ 10282013 10 pick and place locat ion recommend ed pad layout (smd) surface - mount tape & reel
ds_v48s h1r 2 3 5 _ 10282013 11 lea ded (sn/ pb ) pro cess recommend temp. profile (for smd models) note: the temperature refers to the pin of v48 sh , measured on the pin +vout joint. lead free (sac) proc ess recommend temp. profile (for s m d models) note: the temperature refers to the pin of v48 sh , measured on the pin +vout joint. temp . time 150 200 100~140 sec. time limited 90 sec. above 217 217 preheat time ramp up max. 3 ramp down max. 4 peak temp. 240 ~ 245 25
ds_v48s h1r 2 3 5 _ 10282013 12 mechanical drawing(w ith heat - sp reader ) * for modules with through - hole pin s and the optional heatspreader, they are intended for wave soldering assembly onto system boards; please do not subject such modules through reflow temperature profile.
ds_v48s h1r 2 3 5 _ 10282013 13 mechanical drawing s urface - mount module t hrough - hole module pin no. nam e function 1 2 3 4 5 6 7 8 +vin on/off - vin - vout - sense trim +sense +vout positive input voltage remote on/off negative input voltage negative output voltage negative remote sense output voltage trim positive remote sense positive output voltage pin specification: pins 1 - 3 , 5 - 7 1.0 0 mm (0.040) diameter pins 4 & 8 2. 1.50 mm (0.0 60 ) diameter all pins are copper with tin plating.
ds_v48s h1r 2 3 5 _ 10282013 14 part numbering syste m v 48 s h 1r 2 35 n n f a type of product input voltage number of outputs product series o utput voltage output current on/off logic pin length/type option code v - 1/16 b rick 48 - 36v~75v s - single h - h igh p ower 1r 2 - 1. 2 v 35 - 35 a n - negative p - positive r - 0.170 n - 0.145 m - smd f - rohs 6/6 (lead free) s pace - rohs5/ 6 a - standard funct ions h - w ith h eat spreader model list model name input output eff @ 100% load v48sh1r 235 n n fa 36v~75v 1.8 a 1. 2 v 35 a 8 7 .0 % default remote on/off logic is negative and pin length is 0.170 for different remote on/off logic and pin length, please refer to part numbering system above or contact your local sales office . * for modules with through - hole pins and the optional heatspreader, they are intended for wave soldering assembly onto system boards; please do not subject such modules through reflow tempera ture profile. c ontact: www.deltaww.com/dcdc usa: telephone: east coast: 978 - 656 - 3993 west coast: 510 - 668 - 5100 fax: (978) 656 3964 email: dcdc@delta - corp.com europe: p hone: +31 - 20 - 655 - 0967 fax: +31 - 20 - 655 - 0999 email: dcdc @ delta - es.com asia & the rest of world : telephone: +886 3 4526107 e xt 6220 ~6224 fax: +886 3 4513485 email: dcdc@delta.com.tw warranty delta offers a two ( 2) year limited warranty. complete warranty information is listed on our web site or is available upon request from delta. information furnished by delta is believed to be accurate and reliable. however, no responsibility is assumed by delta for its use, nor for any infringements of patents or other rights of third parties, which may result from its use. no license is gran ted by implication or otherwise under any patent or patent rights of delta. delta re serves the right to revise these specifications at any time, without notice .

▲Up To Search▲

Price & Availability of V48SH1R235NNFA

	To Download V48SH1R235NNFA Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .